Here are all the options parts for the Xray XB4 2020 and olders
Reference 06363353-G
Brand: XRAY
COMPOSITE UPRIGHT REAR - GRAPHITE - 363353-G
Reference 06323523
Brand: XRAY
LEXAN REAR WING 1.0mm - LUSH - THICK - 323523
Reference 06930508
Brand: XRAY
BALL-BEARING 5x8x2.5 STEEL SEALED - OIL (2) - 930508
Reference 06359210
Brand: XRAY
XRAY PREMIUM SILICONE OIL 100 cSt --- Replaced with #106310 - 359210
Reference 08106052
Brand: HUDY
SET OF REPLACEMENT DRIVE SHAFT PINS 3x10 (10) - 106052
Reference 06362112
Brand: XRAY
COMPOSITE SUSPENSION ARM FRONT LOWER - 362112
Reference 06362480
Brand: XRAY
ANTI-ROLL BAR 2.0 MM - 362480
Reference 06323354-M
Brand: XRAY
COMPOSITE UPRIGHT REAR - UPPER POSITION - MEDIUM - 323354-M
Reference 06303123-O
Brand: XRAY
ALU SHIM 3x6x2.0MM - ORANGE (10) - 303123-O
Reference 06305231
Brand: XRAY
DRIVE SHAFT COUPLING - HUDY SPRING STEEL - 305231
Reference 06972031
Brand: XRAY
SILICONE O-RING 3x2.1 (10) - 972031
Reference 06329901-H
Brand: XRAY
2WD/4WD REAR WHEEL WITH 12MM HEX - WHITE -HARD (10) - 329901-H